GSI follow up a weapon trail that leads right into Kavkaz mafia headquarters on the west coast. GSI member Niklas Saxlid is the one in the group who is specialized in undercover operations, and he has penetrated Kavkaz' activities. But suddenly something happens and Niklas disappears.
Alva wants nothing more than to become a parent together with boyfriend Nico, but it's just not happening. Meanwhile, her sister Ellen has three children with husband Alex — and dearly wishes she hadn't.